During a helium (He) dilution functional residual capacity (FRC) measurement, the technologist first bleeds in 500 ml of He (He Vol) and obtains an initial reading of 4.0% (FiHe) . After equilibration, the second He reading is 3.2% (FfHe) . What is the patient's FRC?
A) 4450 ml
B) 3125 ml
C) 2680 ml
D) 3670 ml
Correct Answer:
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